AppXRuntime.admx Informations - Download and Fix

Sometimes Windows system displays error messages regarding corrupted or missing AppXRuntime.admx files. Situations like that can occur, for example, during a software installation process. Each software program requires certain resources, libraries, and source data to work properly. Corrupted or nonexistent AppXRuntime.admx file can therefore effect in failed execution of the started process.

AppXRuntime.admx file Windows Group Policy Language-neutral. The file was developed by Microsoft for use with Windows software. Here you will find detailed information about the file and instructions how to proceed in the event of AppXRuntime.admx related errors on your device. You can also download AppXRuntime.admx file compatible with Windows 10, Windows 8.1, Windows 8 devices which will (most probably) allow you to solve the problem.

For Windows Compatible with: Windows 10, Windows 8.1, Windows 8

File info

General information
Filename AppXRuntime.admx
File extension ADMX
Type System
Description Windows Group Policy Language-neutral
Program Windows 10
Software Windows
Author Microsoft
Software version 10
File size 3975
Oldest file 2012-06-02
MIME type application/xml

There are various types of errors related to AppXRuntime.admx file. AppXRuntime.admx file may be located in wrong file directory on your device, may not be present in the system, or may be infected with malicious software and therefore not work correctly. Below is a list of most common error messages related to AppXRuntime.admx file. If you encounter one listed below (or similar), please consider the following suggestions.

  • AppXRuntime.admx is corrupted
  • AppXRuntime.admx cannot be located
  • Runtime Error - AppXRuntime.admx
  • AppXRuntime.admx file error
  • AppXRuntime.admx file cannot be loaded. Module was not found
  • cannot register AppXRuntime.admx file:
  • AppXRuntime.admx file could not be loaded
  • AppXRuntime.admx file doesn't exist



Application could not be started because AppXRuntime.admx file is missing. Reinstall the application to solve the problem.


Problems related to AppXRuntime.admx can be addressed in various ways. Some methods are meant only for advanced users. If you don't have confidence in your skills, we suggest consulting a specialist. Fixing AppXRuntime.admx file errors should be approached with utmost caution for any mistakes can result in unstable or unproperly working system. If you have the necassary skills, please proceed.

AppXRuntime.admx file errors can be caused by various factors, so its is beneficial to try to fix them using various methods.

Step 1: Scan your computer for any malicious software

Virus Scan

Windows files are commonly attacked by malicious software that prevents them from working properly. First step in addressing problems with AppXRuntime.admx file or any other Windows system files should be scanning the system for malicious software using an antivirus tool.

If by any chance you don't have any antivirus software installed on your system yet, you should do it immediately. Unprotected system is not only a source of file errors, but, more importantly, makes your system vulnerable to many dangers. If you don't know which antivirus tool to choose, consult this Wikipedia article – comparison of antivirus software.

Step 2: Update your system and drivers.

Windows Update

Installing relevant Microsoft Windows patches and updates may solve your problems related to AppXRuntime.admx file. Use dedicated Windows tool to perform the update.

  1. Go to the Windows "Start" menu
  2. Type "Windows Update" in the search field
  3. Choose the appropriate software program (name may vary depending on your system version)
  4. Check if your system is up to date. If any unapplied updates are listed, install them immediately.
  5. After the update has been done,restart your computer in order to complete the process.

Beside updating the system, it is recommended that you install latest device drivers, as drivers can influence proper working of AppXRuntime.admx or other system files. In order to do so, go to your computer or device producer's website where you will find information regarding latest driver updates.

Step 3: Use System File Checker (SFC) tool

System File Checker

System File Checker is a Microsoft Windows tool. As the name suggests, the tool is used for identyfing and addressing system file related errors, including those related to AppXRuntime.admx file. After an error related to%fileextension% file has been discovered, the program attempts to automatically replace the AppXRuntime.admx file with properly working version. To use the tool:

  1. Go to the Windows "Start" menu
  2. Type "cmd" in the search field
  3. Locate "Command Prompt" result – don't run it yet:
  4. Click the right mouse button and select "Run as Administrator" option
  5. Type "sfc /scannow" in console prompt to start the program and follow the instructions

Step 4: Restoring Windows system

Windows Recovery

Another approach is to restore system to previous state, before the AppXRuntime.admx file error occured. In order to restore your system, follow the instructions below

  1. Go to the Windows "Start" menu
  2. Type "System Restore" in the search field
  3. Start the system restore tool – it's name may differ depending on version of the system
  4. The application will guide you through the process – read the messages carefully
  5. After the process has finished, restart your computer.

If all the above-mentioned methods failed and the AppXRuntime.admx file problem has not been resolved, proceed to the next step. Remember that the following steps are intended only for advanced users.

Download and replace AppXRuntime.admx file

The last solution is to manually download and replace AppXRuntime.admx file in appropriate folder on the disk. Select file version compatible with your operating system and click the "Download" button. Next, go to your web browser's "Downloaded" folder and copy the downloaded AppXRuntime.admx file.

Go to the folder where the file should be located and paste the downloaded file. Below is the list of AppXRuntime.admx file example directory paths.

  • Windows 10: C:\Windows\PolicyDefinitions\
  • Windows 8.1: C:\Windows\PolicyDefinitions\
  • Windows 8: 1: C:\Windows\PolicyDefinitions\

If the steps did not solve your AppXRuntime.admx file problem, you should consult a professional. A probability exists that the error(s) might be device-related and therefore should be resolved at the hardware level. A fresh operating system installation might be necessary – a faulty system installation process can result in data loss.

File versions list

Filename AppXRuntime.admx
System Windows 10
File size 3975 bytes
Date 2017-03-18
File details
MD5 e096226f044e3a3cd52cba399d23588e
SHA1 1b6424d82513122305cb445053ee1a6e9b338aee
SHA256 508fd5499974e3de70f076163ca40e38c5b3667a842cae3a4fdcde239567b190
CRC32 024eec34
Example file location C:\Windows\PolicyDefinitions\
Filename AppXRuntime.admx
System Windows 8.1
File size 3390 bytes
Date 2013-07-18
File details
MD5 88d794ea092ef395433cfa321d06e5e4
SHA1 f1f7c7dfbd04ac5a92cbde88bd4f087781d63c40
SHA256 5afc969e4212a6511f307385c99b8868e8c873183dc271bbb95ba571b24eb53e
CRC32 bf63c937
Example file location C:\Windows\PolicyDefinitions\
Filename AppXRuntime.admx
System Windows 8
File size 1960 bytes
Date 2012-06-02
File details
MD5 268ba5e40c5528f41a8023bdd35c4dc3
SHA1 924091859abb9c62b78cd4abe795a75bbcda396e
SHA256 000c77796f6009262e4d9a82a1b54602a87d34813ab01ff38b562f9c8d2f230b
CRC32 a4d1511c
Example file location 1: C:\Windows\PolicyDefinitions\